Sheng-Ze Wang

collaborators

2 papers

math.CO2026

Cayley Tournaments Simultaneously Critical for the Clique and Dichromatic Numbers

Guantao Chen, Shengze Wang

For a tournament $T$ , let $ω (T)$ be the minimum clique number among the backedge graphs of $T$ , and let $χ (T)$ be its dichromatic number. We give a template-lifting construction. I…

math.CO2026

Average degrees of edge- $Δ$ -critical multigraphs

Guantao Chen, Yuying Ma, Yimo Su +1

Let $G$ be a loopless multigraph with maximum degree $Δ (G)$ , average degree $d (G)$ , density $Γ (G)$ , and chromatic index $χ^{'} (G)$ . A multigraph $G$ is called edge- $Δ$ -crit…

Cayley Tournaments Simultaneously Critical for the Clique and Dichromatic Numbers

Average degrees of edge-Δ-critical multigraphs

Average degrees of edge- $Δ$ -critical multigraphs